Model Overview

Specification

Basic features

■ Blow-out proof valve spindle

■ Non-rotating, low-wear spindle tip

■ Metal-to-metal back seat design

Special design features

■ Without

■ For oxygen, oil- and grease-free

■ ASME B31.1, power piping (only available with graphite sealing packing)

Standards used

　Basic design

　■ MSS SP-99, valves for measuring instruments

　■ MSS SP-105, instrument valves for code applications

　■ ASME B16.34, valves – flanged, threaded and welding end

　■ ASME B1.20.1, pipe threads, general purpose (inch)

　■ ASME B31.3, process piping

　■ ASME BPVC, section VIII, division 1

　Special design

　■ Without

　■ ISO 10497, API 6FA and API 607, type test for fire safety

　■ TA-Luft (VDI 2440) and ISO 15848-1, type test for fugitive emissions

　Tests

　MSS SP-61, pressure testing of valves

　Special tests

　■ Without

　■ API 598, valve inspection and testing

　■ ISO 5208, pressure testing of metallic valves with leakage rate A

　Material requirements

　NACE MR0175 / ISO 15156, use in H₂S-containing environments in oil and gas production

　Special material requirements

　■ Without

　■ NORSOK M-630, specification for use in pipelines (Norway)

　Marking

　MSS SP-25, standard marking system for valves

Bonnet

Bonnet design

■ Screwed bonnet, 4 mm [0.16 in] bore size

■ Bonnet with extended handle, 4 mm [0.16 in] bore size

■ Miniature bonnet, 4 mm [0.16 in] bore size

■ Cryogenic bonnet for medium temperatures to -196 °C [-320 °F], 4 mm [0.16 in] bore size

■ OS&Y bonnet, bolted, 8 mm [0.31 in] bore size

■ Bolted bonnet, 8 mm [0.31 in] bore size

■ Bolted bonnet, 10 mm [0.39 in] bore size

■ Bolted for panel mounting, 4 mm [0.16 in] bore size

■ Metering bonnet for natural gas, 9.5 mm [0.375 in] bore size

Bonnet variant

■ Without

■ Anti-tamper for shut-off valve, padlock not included

■ Anti-tamper for shut-off valve, padlock included

■ Small T-handle

■ T-handle from stainless steel 316L (1.4404)

Process connection / Instrument connection

Standard

■ Threaded connection per ANSI B1.20.1, code NPT

■ Threaded connection per ISO 228-1, code G

■ Swivel connection

■ Weld-in connection

■ Compression fitting

■ Flange connection per IEC 61518, Form A or Form B

■ Connection for EMICO gauge

Size

■ ¼ NPT

■ ⅜ NPT

■ ½ NPT

■ ¾ NPT

■ G ¼

■ G ⅜

■ G ½

■ G ¾

Vent connection

■ ¼ NPT female, plug screw included

■ ½ NPT female, plug screw included

■ ¼ NPT female with installed bleeder screw

■ G ¼ female, plug screw included

■ G ½ female, plug screw included

■ 2 x ¼ NPT female, plug screw included and bleeder screw installed

Operating conditions

Permissible operating pressure

■ ≤ 3,000 psi or ≤ 206 bar

■ ≤ 6,000 psi or ≤ 420 bar

■ ≤ 10,000 psi or ≤ 690 bar

Pressure and temperature limits

The limits for operating pressure and temperature depend on the version and the sealing material.

Material

Wetted parts

　Valve body, bonnet body

　■ Stainless steel 316/316L (1.4401/1.4404)

　■ Stainless steel 321 (1.4541)

　■ Monel 400 (2.4360)

　■ Hastelloy C276 (2.4819)

　Spindle tip

　■ Stainless steel 316/316L (1.4401/1.4404)

　■ Monel 400 (2.4360)

　■ Hastelloy C276 (2.4819)

　Sealing packing

　■ PTFE, temperature range: -55 ... +204 °C [-67 ... +400 °F]

　■ Polar PTFE, temperature range: -70 ... +204 °C [-94 ... +400 °F]

　■ Graphite, temperature range: -55 ... +500 °C [-67 ... +932 °F]

　■ SIGRAFLEX® ZX graphite, nuclear quality, temperature range: -55 ... +500 °C [-67 ... +932 °F]

　■ FKM, temperature range: -29 ... +180 °C [-20 ... +356 °F]

　■ FKM AED, temperature range: -46 ... +180 °C [-50 ... +356 °F]

　■ RTFE , temperature range: -55 ... +180 °C [-67 ... +356 °F]

　Non-wetted parts

　Gland nut, valve spindle, seal bush, locking nut, locking pin

　Stainless steel

Handle

■ Stainless steel 304

■ Stainless steel 316/316L (1.4401/1.4404)

Bonnet design

Screwed bonnet

Pressure-temperature diagram

The table above provides information about the characteristics of the sealing packing at the respective process parameters. To maximise the service life, it is recommended that the valve should not be operated continuously at the temperature limits.

The minimum design temperature for most needle valves is -55 °C [-67 °F]. Some versions have other design temperatures due to material specifications. For continuously low operating temperatures ≤ -55 °C [≤ -67 °F] a special polar design is needed.